人教新课标必修三 Unit 2 语法辅导课件-Modal verbs[课件].ppt

There are things that ______ be done That are not yet begun Things that I ______ do When I want to be with you Although we ______ be far apart You ______ be with be in my heart No one else ______ do I just want to be with you I want to be with you ______ you hear me? I need you near me I want to be with you I need you near me, my love The two of us ______ be one Mother of my son No one else ______ do I just want to be with you I want to be with you _____ you hear me? I need you near me I want to be with you I need you near me, my love Discovering useful structures --- Modal Verbs Functions of Modal Verbs (p5) Ability Advice Agreement Guessing Past habit Necessity Permission Possibility Prediction Promise Request 1. can /could (2) 表示允许(许可或请求许可）(permission/request) --Can/ Could I go now? --You can go now, but he can’t. (3)表示理论上或习惯上的可能性（肯定句） E.g.1 It can be quite cold here in winter. E.g.2 Accidents can happen at any time. E.g.3 It could be very exciting to go out for a drive. (4)推测（ guessing ）（can 限于否定句，疑问句，could不受此限） E.g. A: Someone is coming! Who can it be? B: It could be John. C: It can’t be him. B: Well. It couldn’t be him. Conclusion 1 Can/ could (1)表示能力(ability) (2) 表示允许(许可或请求许可) (3)表示理论上或习惯上的可能性(肯定句) (4)推测(guessing )（can 限于否定句，疑问句，could不受此限） Tips 1. 惯用形式“cannot …too…”表示“无论怎么……也不（过分）”。如： You cannot be too careful. 你越小心越好。 2. 惯用形式“cannot but+ 不定式（不带to）”表示“不得不，只好”。如： I cannot but admire her determination. 我不得不钦佩你的决心。 2. may/ might (1) 表示请求、许可(request or permission) -- May/Might I ask you a question? -- Yes, you may. / Yes, you can./ Yes, please. -- No, you can’t./ No, you mustn’t. (2) 表示愿望 (wish) May you be happy all your life. May God bless you! May you succeed. May sb (verb)…! (3)表示推测(possibility), 多用于肯定句和否定句 might比may可能性更小 It may/ may not be true. He might/ might not come today. Conclusion 2 may/ might (1) 表示请求、许可(request or permission) (2) 表示愿望 (wish) (3)表示推测(possibility), 多用于肯定句和否定句，might比may可能性更小 Tip